The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 25, 2026
Filed:
Dec. 14, 2021
Red Hat, Inc., Raleigh, NC (US);
Michael Tsirkin, Lexington, MA (US);
Amnon Ilan, Raanana, IL;
Red Hat, Inc., Raleigh, NC (US);
Abstract
Systems and methods for memory management for nested virtual machines. An example method may comprise running, by a host computer system, a hypervisor managing a first virtual machine; responsive to receiving, by the hypervisor, a request to create a second virtual machine nested within the first virtual machine, determining whether the second virtual machine will be using a physical address as a virtual address for a peripheral device; and responsive to determining that the second virtual machine will be using the physical address as the virtual address for the peripheral device, initializing a first data structure for address translation of the physical addresses of the second virtual machine corresponding to virtual addresses of the peripheral device to a host virtual addresses.